f622936d6c5239b3d5ccafdf38189cec8bca55c0 |
15-Apr-2014 |
Christopher Ferris <cferris@google.com> |
Make sure that all memory accesses are guarded. This doesn't protect the fpreg reads completely. It's still possible to have a bad address that has the first part in readable memory and the second part in unreadable memory. Since none of the code android uses uses the fpreg data, this should be okay. Bug: 13946101 Change-Id: I9187b16d0427cbc8af6751cf0b8476ea2d1bfc38
ibunwind_i.h
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f4a8df5f4f338f1a12c25213227e98b34b42447f |
08-Mar-2014 |
Christopher Ferris <cferris@google.com> |
Fix maps caching for local processes. It is possible for the map to change while running libunwind. For example, if lots of threads are doing local unwinds at the same time. Allow the cached map to regenerate when it detects this case. Included in this change is a refactor of all of the os code so that it can also be used to do caching. This is a prelude to being able to attempt to push the code upstream. Also, this moves the code back closer to the original upstream code. Hopefully, this will allow me to upstream all of these changes. Change-Id: Ia219fa61e16e36416133bc95b1dd2161bd5b8ff7
ibunwind_i.h
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16b95a68caaa7e021209e2cd6a877ae1e558f740 |
23-Jan-2014 |
Christopher Ferris <cferris@google.com> |
Add speed-ups to libunwind. Add caching of /proc/self/maps data structures. Add caching of elf image maps attached to the maps data structure. Add a set of new map api functions to handle creation/destruction of the maps by external code. Remove the creation of the maps data structure in the local address space init. Change-Id: I0adae397d433fc3902f83a6f377f6889161937e5
ibunwind_i.h
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7d46a21e0a2cb561e4cad57b101a7137e01023dc |
14-Nov-2013 |
Christopher Ferris <cferris@google.com> |
For current process, check memory accesses. When attempting to unwind the current process, the library simple reads and writes to memory for memory accesses. Unfortunately, if an unwind winds up with invalid data, then the process can segfault. Add a guard to all memory accesses that verifies that reads/writes are valid before attempting them. For now, this guard is a nop on all systems except linux systems. Also, modify the adjust_ip function to use the access_mem function so that all reads go through the right function. Bug: 11652982 Change-Id: I9d1feacae585374f6bf1d899f8a006ec9ecb47c4
ibunwind_i.h
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8d5b1aeeffb80515197fd7aeee0b3fbfac904ecd |
16-Aug-2012 |
Tommi Rantala <tt.rantala@gmail.com> |
SuperH port Add support for the 32bit SuperH architecture running Linux. Specifically, support is added for SH4, and support for earlier SH versions and to the 64bit SH5 are left out. This was tested in qemu with a little-endian SH4 debian image & GCC 4.7 cross compiler.
warf-config.h
mpbuf.h
ibunwind_i.h
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